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Tweet! http://bit.ly/1aKhP8t Support the site and the podcast - get a FREE BOOK! http://www.audible.com/rocketjump Two cops get more than they bargained for when they face down a ruthless criminal... Special thanks to Key & Peele for appearing in our video! Freddie will be in their Halloween episode on October 30th at 10:30 PST Music by John Robert Matz ( http://johnrobertmatz.com ) Sound by Kevin Senzaki VFX by Arnold Aldridge and Tanner Merrill Camera by Ben M. Waller Cast: Agent - Keegan-Michael Key Cortez - Jordan Peele Asian - Freddie Wong Cop - Brian Firenzi Cop - Alec Owen Police Photographer - Lauren Haroutunian Hacker - Arnold Aldridge Sniper - Jamie Lukaszewski Wife - Ellary Porterfield Kidnapper: Jake Andrews Dead Body - Danny Vink Written By: Matthew Arnold, Will Campos, Brian Firenzi More awesome videos at RocketJump.com! For licensing and usage inquiries please email licensing@rocketjump.com
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Leonardo da Vinci became obsessed with the heart in the latter period of his remarkable life. He made a prediction about the main blood vessel leaving the heart, the aorta. He had figured out how the flow of blood out of the heart actually closes the aortic valve. Leonardo had no way of testing it and no way of seeing inside a working heart. For centuries no one else even speculated. But in the last 50 years technology has finally been invented to show that he was absolutely right. --- Thanks for watching. I am new to this so likes are less about getting numbers, but just to know if you thought it was any good - even better please leave a comment, I appreciate any feedback. --- Music: Tango de Manzana by Kevin MacLeod (Creative Commons licence, downloaded from http://incompetech.com/music/royalty-free/index.html?collection=15 References: Incredible British Library digitised version of Leonardo's notebooks and sketches - http://www.bl.uk/manuscripts/Viewer.aspx?ref=arundel_ms_263_f001r Image credit: http://www.sciencedirect.com/science/article/pii/S0021929016306194 Image credit: http://heart.bmj.com/content/83/4/376 Image credit and you've got to check out John Hutchinson's amazing website if you love anatomy, physiology, animals or just gory pictures: https://whatsinjohnsfreezer.com/ That awesome giraffe study: http://circres.ahajournals.org/content/circresaha/67/2/448.full.pdf Nice overview: https://academic.oup.com/eurheartj/article/35/20/1344/430141/Flow-vortices-in-the-aortic-root-in-vivo-4D-MRI
The legendary Carl Sagan brilliantly demonstrates how Eratosthenes proved a spherical Earth. Hard to believe that some people still deny this 2200 years later.
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